Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
VAPORIZATION DEVICE AND HEATING ASSEMBLY THEREOF
FIELD
[0001] The present invention relates to the field of vaporization, and more
specifically, to a
vaporization device and a heating assembly thereof.
BACKGROUND
[0002] A vaporization device is a device configured to heat a vaporization
medium such as
plant tobacco leaves or opium paste to generate vapor for a user to inhale. A
heating assembly of
the vaporization device generally includes a heating element and a shunt mesh.
The heating
element can generate heat after energized to heat air into hot air, and the
hot air heats the
vaporization medium after shunted by the shunt mesh. The vaporization medium
is placed on the
shunt mesh, which may easily pollute the shunt mesh after a plurality of times
of heating.
SUMMARY
[0003] In an embodiment, the present invention provides an improved heating
assembly and
a vaporization device including the heating assembly for the foregoing defects
in the related art.
[0004] In an embodiment, the present invention provides a heating assembly,
including: a
heating body; a shunt mesh disposed on the heating body; an upper cap covered
on the heating
body and the shunt mesh; and a replaceable filter mesh disposed above the
shunt mesh and
configured to place a vaporization medium, wherein a vaporization cavity is
formed on the upper
cap, and wherein the replaceable filter mesh is replaceably disposed in the
vaporization cavity.
[0005] In some embodiments, a vent gap is formed between the replaceable
filter mesh and
the shunt mesh.
[0006] In some embodiments, the replaceable filter mesh includes a bottom
wall, and a
plurality of first filter holes for airflow to run through are distributed on
the bottom wall.
[0007] In some embodiments, the bottom wall includes a first region located
at a center of
the bottom wall and a second region surrounding the first region, and a
distribution density of the
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plurality of first filter holes in the first region is less than a
distribution density of the plurality of
first filter holes in the second region.
[0008] In some embodiments, a distribution density of the plurality of
first filter holes on the
bottom wall gradually increases from a center to a periphery of the bottom
wall.
[0009] In some embodiments, the bottom wall protrudes upward to form a
cylindrical
protruding portion, and a top wall and a side wall of the protruding portion
are provided with a
plurality of second filter holes for airflow to run through.
[0010] In some embodiments, the replaceable filter mesh further includes a
cylindrical side
wall extending upward from an outer periphery of the bottom wall.
[0011] In some embodiments, an airflow gap is formed between an outer wall
surface of the
cylindrical side wall and an inner wall surface of the vaporization cavity,
and the cylindrical side
wall is provided with a plurality of third filter holes for airflow to run
through.
[0012] In some embodiments, a size of a cross section of the cylindrical
side wall decreases
from a top of the cylindrical side wall to a bottom of the cylindrical side
wall.
[0013] In some embodiments, the replaceable filter mesh further includes a
flange extending
outward from an upper outer edge of the cylindrical side wall, and the flange
abuts against an
upper end surface of the upper cap.
[0014] In some embodiments, the replaceable filter mesh is in a shape of a
plate, and an outer
edge of the replaceable filter mesh concaves inward to form at least one
groove.
[0015] In some embodiments, the heating body includes a base, a heating
cover disposed on
the base, and a heating element disposed between the base and the heating
cover and in air
communication with the vaporization cavity.
[0016] In some embodiments, a heating cavity configured to place the
heating element is
formed between the base and the heating cover, a diffusion cavity is formed
between the heating
cover and the shunt mesh, and a convergence hole communicating the heating
cavity with the
diffusion cavity is formed on the heating cover.
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[0017] In some embodiments, the shunt mesh includes a shunt region disposed
corresponding to the diffusion cavity, and a plurality of airflow holes for
airflow to run through
are distributed on the shunt region; and
[0018] the shunt region includes a center region located at a center of the
shunt region and a
peripheral region surrounding the center region, and a distribution density of
the plurality of
airflow holes in the center region is less than a distribution density of the
plurality of airflow
holes in the peripheral region.
[0019] In some embodiments, a central axis of the convergence hole overlaps
with a central
axis of the diffusion cavity.
[0020] In some embodiments, the heating cavity surrounds the outside of the
convergence
hole, and a convergence groove for communicating the heating cavity with the
convergence hole
is further formed between the base and the heating cover.
[0021] In some embodiments, an upper wall surface and/or a lower wall
surface of the
heating cavity protrude outward to form at least one thermal insulation rib
for the heating
element to abut against.
[0022] In some embodiments, an outer edge of the shunt mesh protrudes
outward to form at
least one limiting protrusion, and the limiting protrusion abuts against an
inner wall surface of
the upper cap.
[0023] In some embodiments, the heating assembly further includes a locking
member
surrounded outside the upper cap and the base and locking the upper cap and
the base.
[0024] In some embodiments, the heating assembly further includes a
temperature measuring
element configured to measure an air temperature in the heating assembly.
[0025] The present invention further provides a vaporization device,
including a body and
the heating assembly according to any one of the foregoing disposed in the
body.
[0026] Implementation of the present invention at least has the following
beneficial effects: a
replaceable replaceable filter mesh is disposed in the vaporization cavity to
place a vaporization
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medium, and the replaceable filter mesh is taken out after the vaporization
medium is heated,
which is easy to discard or easy for a user to clean and reuse the replaceable
filter mesh, thereby
reducing pollution to the shunt mesh.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Subject matter of the present disclosure will be described in even
greater detail below
based on the exemplary figures. All features described and/or illustrated
herein can be used alone
or combined in different combinations. The features and advantages of various
embodiments will
become apparent by reading the following detailed description with reference
to the attached
drawings, which illustrate the following:
[0028] FIG. 1 is a three-dimensional schematic structural diagram of a
vaporization device
with a suction nozzle at a first position according to a first embodiment of
the present invention;
[0029] FIG. 2 is a schematic structural cross-sectional view of the
vaporization device shown
in FIG. 1;
[0030] FIG. 3 is a three-dimensional schematic structural diagram of the
vaporization device
in FIG. 1 with the suction nozzle at a second position;
[0031] FIG. 4 is a schematic structural cross-sectional view of the
vaporization device shown
in FIG. 3;
[0032] FIG. 5 is a schematic structural exploded view of the vaporization
device shown in
FIG. 3;
[0033] FIG. 6 is a schematic structural exploded view of a suction nozzle
assembly in FIG.
5;
[0034] FIG. 7 is a schematic structural exploded view of a heating assembly
in FIG. 5;
[0035] FIG. 8 is a schematic structural cross-sectional view of the heating
assembly in FIG.
5;
[0036] FIG. 9 is a three-dimensional schematic structural diagram a heating
cover in FIG. 7;
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[0037] FIG. 10 is a schematic structural cross-sectional view of a heating
assembly of a
vaporization device according to a second embodiment of the present invention;
[0038] FIG. 11 is a three-dimensional schematic structural diagram of a
replaceable filter
mesh in FIG. 10;
[0039] FIG. 12 is a schematic structural cross-sectional view of a heating
assembly of a
vaporization device according to a third embodiment of the present invention;
[0040] FIG. 13 is a three-dimensional schematic structural diagram of a
replaceable filter
mesh in FIG. 12; and
[0041] FIG. 14 is a schematic structural cross-sectional view of a heating
assembly of a
vaporization device according to a fourth embodiment of the present invention.
DETAILED DESCRIPTION
[0042] To have a clearer understanding of the technical features,
objectives, and effects of
the present invention, specific implementations of the present invention are
described in detail
with reference to the accompanying drawings.
[0043] FIG. 1 to FIG. 9 show a vaporization device 100 according to a first
embodiment of
the present invention. The vaporization device 100 may be approximately in a
shape of an
elliptical cylinder and may include a body 1, a suction nozzle assembly 3
longitudinally disposed
above the body 1, and a heating assembly 2 disposed in the body 1. The suction
nozzle assembly
3 may be detachably mounted above the body 1, to help dismount the suction
nozzle assembly 3
from the body 1 for cleaning, and a vaporization medium may be added to the
heating assembly
2 after the suction nozzle assembly 3 is dismounted. The heating assembly 2
may generate heat
after energized to heat air into hot air, the hot air flows to the
vaporization medium to heat and
vaporize the vaporization medium into vapor, and the vapor flows out through
the suction nozzle
assembly 3 for a user to inhale. It may be understood that, the vaporization
device 100 is not
limited to the shape of an elliptical cylinder, and may alternatively in
another shape such as a
shape of a cylinder, a square cylinder, or a flat cylinder.
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[0044] In some embodiments, the body 1 may include a cylindrical shell 11,
a button 18
disposed on the shell 11, a bottom cover 16 disposed below the shell 11, a
battery 13 disposed in
the shell 11, and a main board 15 disposed in the shell 11. The battery 13 is
electrically
connected to the main board 15, the main board 15 is electrically connected to
the heating
assembly 2, and the main board 15 may control on/off between the battery 13
and the heating
assembly 2 under action of the button 18.
[0045] In some embodiments, the body 1 may further include a holder 12
longitudinally
disposed in the shell 11. The battery 13 may be disposed in the holder 12, and
the main board 15
may be disposed on one side of the holder 12. An upper portion of the holder
12 forms an
accommodating groove 120 with a top opening, and the heating assembly 2 may be
placed in the
accommodating groove 120 through the top opening. The accommodating groove 120
may be
provided with a thermal insulation pad 14, and the heating assembly 2 may abut
against a bottom
wall of the accommodating groove 120 through the thermal insulation pad 14,
which helps
improve the thermal insulation performance between the heating assembly 2 and
the holder 12.
The thermal insulation pad 14 may be generally made of a material with high
temperature
resistance and low thermal conductivity such as thermal insulation cotton. A
top portion of the
body 1 may be further provided with at least one magnetic member 17 configured
to
magnetically connected to the suction nozzle assembly 3. In this embodiment,
there are two
magnetic members 17, and the two magnetic members 17 may be embedded in a top
portion of
the holder 12 and respectively located on two opposite sides of the
accommodating groove 120.
[0046] As shown in FIG. 2 to FIG. 6, in some embodiments, the suction
nozzle assembly 3
may include a suction nozzle base 32 and a suction nozzle 31 rotatably
disposed on the suction
nozzle base 32. The suction nozzle base 32 includes an air guide channel 320
in air
communication with the heating assembly 2, and the suction nozzle 31 includes
a rotation shaft
portion 312 rotatably disposed on the suction nozzle base 32 and a suction
nozzle portion 311
transversely extending out from the rotation shaft portion 312. A rotation
central axis of the
rotation shaft portion 312 is disposed in a biased manner relative to a
central axis of the suction
nozzle portion 311 and a central axis of the suction nozzle base 32
respectively. An air suction
channel 3110 is formed on the suction nozzle portion 311, and the air suction
channel 3110
communicates the air guide channel 320 with the outside, to guide vapor
generated after
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vaporization of the heating assembly 2 out for a user to inhale. The air
suction channel 3110
includes an air suction end away from the rotation shaft portion 312, and the
suction nozzle
portion 311 can transversely rotate around the rotation shaft portion 312
between a first position
and a second position relative to the suction nozzle base 32. When the air
suction channel 3110 is
at the first position, the air suction end of the air suction channel 3110 is
configured to be
retracted into the suction nozzle base 32. When the air suction channel 3110
is at the second
position, the air suction end of the air suction channel 3110 is configured to
protrude out of the
suction nozzle base 32.
[0047] In some embodiments, the air guide channel 320 may include a first
air guide channel
3201, a second air guide channel 3202, and a third air guide channel 3203
communicated with
each other from bottom to top. The first air guide channel 3201 may be formed
through rightly
upward extension of a bottom surface of the suction nozzle base 32, and may be
disposed
coaxially with the body 1 and the heating assembly 2. A top position of the
suction nozzle base
32 includes a mounting plane 321, the third air guide channel 3203 may be
formed through
downward extension of the mounting plane 321, and a central axis of the third
air guide channel
3203 is disposed in a biased manner relative to a central axis of the first
air guide channel 3201.
In this embodiment, the mounting plane 321 is a slope and forms a certain
angle with a
horizontal plane, an extending direction of the third air guide channel 3203
is perpendicular to
the mounting plane 321 and forms a certain angle with a vertical direction,
and the third air guide
channel 3203 is disposed on a relatively high side of the mounting plane 321.
In other
embodiments, the mounting plane 321 may be alternatively parallel to the
horizontal plane, and
the extending direction of the third air guide channel 3203 may be
alternatively parallel to the
vertical direction.
[0048] The rotation shaft portion 312 may be rotatably disposed in the
third air guide channel
3203. An airflow channel 3120 in communication with the air guide channel 320
is formed on
the rotation shaft portion 312, and the airflow channel 3120 may be disposed
coaxi ally with the
third air guide channel 3203. The air guide channel 320, the airflow channel
3120, and the air
suction channel 3110 are communicated with each other sequentially, to form an
air outlet
channel for guiding vapor out. The suction nozzle portion 311 is approximately
in a shape of an
elliptical sheet and the air suction channel 3110 in communication with the
airflow channel 3120
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is formed in a length direction of the suction nozzle portion. The suction
nozzle portion 311 is
mounted on the mounting plane 321 and may transversely rotate by 360 degrees
in a plane
overlapping with or parallel to the mounting plane 321. When the suction
nozzle portion 311 is
at the first position, the suction nozzle portion 311 is retracted into the
suction nozzle base 32, an
outer edge of the suction nozzle portion 311 overlaps or approximately
overlaps with an outer
edge of the mounting plane 321, which can greatly reduce a space occupied by
the vaporization
device and facilitates accommodation and carrying. When the suction nozzle
portion 311 is at the
second position, the air suction end of the suction nozzle portion 311
protrudes out of the suction
nozzle base 32 and extends oblique upward to facilitate a user to inhale
through mouth.
According to this structure configuration of the suction nozzle assembly, a
path of the air outlet
channel of the vapor can be greatly extended, so that an air temperature when
the vapor is output
is greatly reduced, and the space occupied by the vaporization device may be
relatively small.
[0049] In some embodiments, the suction nozzle assembly 3 may further
include a filter
mesh 35 disposed in the first air guide channel 3201, a seal sleeve 34
sealedly disposed between
an outer wall surface of the filter mesh 35 and an inner wall surface of the
first air guide channel
3201, a clasp member 33 detachably clamped on the rotation shaft portion 312,
a seal ring 36
sealedly sleeved on the rotation shaft portion 312, and at least one magnetic
member 37
embedded in a bottom of the suction nozzle base 32.
[0050] The filter mesh 35 may be in a shape of a bowl and may be made of a
metal material
such as stainless steel. The filter mesh 35 may filter out impurities doped in
the vapor, to prevent
the impurities from being inhaled in a mouth of the user, thereby improving
the user experience.
A bottom wall of the filter mesh 35 is provided with a plurality of filter
holes 350 for airflow to
run through, and the vapor generated through vaporization of the heating
assembly 2 enters the
air guide channel 320 through the filter holes 350. An upper periphery of the
filter mesh 35 may
protrude outward to form an annular positioning flange 351, and the
positioning flange 351 may
abut against an upper end of the first air guide channel 3201. An outer edge
of the positioning
flange 351 may concave inward to form at least one groove 3510, so that the
user may take out
the filter mesh 35 by using tools such as a nipper.
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[0051] The seal sleeve 34 is embedded in a lower portion of the suction
nozzle base 32 and
may be made of an elastic material such as silica gel. A bottom surface of the
seal sleeve 34
extends upward to form a vent groove 340, an inner wall surface of the vent
groove 340 defines
the first air guide channel 3201, and the filter mesh 35 is tightly embedded
in the vent groove
340. The magnetic member 37 is configured to be magnetically connected to the
body 1. In this
embodiment, there are two magnetic members 37 and are respectively disposed on
two sides of
the first air guide channel 3201, and the two magnetic members 37 are disposed
with the two
magnetic members 17 in a one-to-one correspondence and magnetically connected
to each other
respectively.
[0052] A fasten groove 3121 is formed on the rotation shaft portion 312,
and the clasp
member 33 is detachably clamped in the fasten groove 3121 to implement fast
mounting and
dismounting of the suction nozzle base 32 and the suction nozzle 31. The clasp
member 33 may
include an opening ring 331 and an extending portion 332 connected to the
opening ring 331.
The fasten groove 3121 may be in a shape of a circle and is formed by the
outer periphery of the
rotation shaft portion 312 concaving inward in a radial direction. The opening
ring 331 is
clamped in the circular fasten groove 3121, an upper end surface of the
opening ring 331 abuts
against a lower end surface of the third air guide channel 3203, and a lower
end surface of the
opening ring 331 abuts against a lower end surface of the ring-shaped fasten
groove 3121. The
extending portion 332 may be formed by one side away from an opening of the
opening ring 331
through bending obliquely downward, and the extending portion 332 may
facilitate the user to
manually mount and dismount the clasp member 33. When the suction nozzle
assembly 3 is
dismounted, the seal sleeve 34 may be taken out from the below of the suction
nozzle base 32,
the filter mesh 35 is then dismounted from the seal sleeve 34, the clasp
member 33 is dismounted
from the rotation shaft portion 312, and the suction nozzle 31 is dismounted
from the above of
the suction nozzle base 32. The structure design of the suction nozzle
assembly enables the
suction nozzle assembly to be dismounted into components conveniently, so that
oil stains and
dust accumulated after inhalation of the components can be immersed (such as
ethanol) and
cleaned.
[0053] The seal ring 36 may be in a shape of a circle and sleeved in the
circular fasten
groove 3121, an upper end surface of the seal ring 36 abuts against an upper
end surface of the
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Date Recue/Date Received 2022-06-21
circular fasten groove 3121, and a lower end surface of the seal ring 36 abuts
against an upper
end surface of the third air guide channel 3203. The seal ring 36 may be made
of an elastic
material such as silica gel and work with the clasp member 33 to implement
axial direction
positioning of the rotation shaft portion 312 in the third air guide channel
3203.
[0054] As shown in FIG. 7 to FIG. 9, in some embodiments, the heating
assembly 2 may
include a heating body 20, an upper cap 27 covered on the heating body 20, and
a shunt mesh 25
disposed between the heating body 20 and the upper cap 27. The heating body 20
may include a
base 21, a heating cover 22 disposed on the base 21, and a heating element 231
disposed between
the base 21 and the heating cover 22.
[0055] In some embodiments, the heating element 231 may be an approximately
U-shaped
metal heating wire. Two electrode leads 232 are respectively welded on two
ends of the heating
element 231, and the heating element 231 is electrically connected to the main
board 15 through
the two electrode leads 232. The heating cover 22 and the base 21 may be both
made of a
material with high temperature resistance and low thermal conductivity, and an
approximately
U-shaped heating cavity 2210 is formed between the heating cover 22 and the
base 21. The
heating element 231 is disposed in the heating cavity 2210 and heat air in the
heating cavity 2210
after energized to generate heat. Side walls of the base 21 and the heating
cover 22 are
correspondingly provided with at least one air inlet 2220 communicating the
heating cavity 2210
with the outside. In this embodiment, there are two air inlets 2220, and the
two electrode leads
232 may be led out from the two air inlets 2220 respectively. It may be
understood that in other
embodiments, the air inlet 2220 may be alternatively only formed on the side
wall of the base 21
or the heating cover 22, or the air inlet 2220 may be alternatively formed on
a bottom wall of the
base 21.
[0056] A convergence hole 2250 longitudinally runs through the heating
cover 22, and the
heating cavity 2210 surrounds the outside of the convergence hole 2250. A
convergence groove
2230 communicating the heating cavity 2210 with the convergence hole 2250 is
further formed
between the heating cover 22 and the base 21, air introduced by the two air
inlets 2220 is heated
in the heating cavity 2210 by the heating element 231 to form hot air, and the
hot air flows to the
convergence hole 2250 after converged by the convergence groove 2230. In this
embodiment,
Date Recue/Date Received 2022-06-21
the heating cavity 2210 and the convergence groove 2230 may be both formed on
a bottom of
the heating cover 22, and the convergence groove 2230 may be in communication
with one side
of the convergence hole 2250 away from the two air inlets 2220 and extend in a
length direction
of the heating cover 22.
[0057] In some embodiments, the base 21 may include a plate-shaped
substrate portion 211
and a circular wall portion 212 extending upward from an outer periphery of
the substrate
portion 211. The heating cover 22 is disposed in the wall portion 212 and may
abut against the
substrate portion 211. An outer wall surface of the heating cover 22 may
protrude outward to
form at least one thermal insulation protrusion 2211, and the heating cover 22
abuts against an
inner wall surface of the wall portion 212 through the at least one thermal
insulation protrusion
2211, so that direct contact thermal conduction between the outer wall surface
of the heating
cover 22 and the inner wall surface of the wall portion 212 may be prevented,
which facilitates
thermal insulation between the heating cover 22 and the base 21. An upper end
surface of the
substrate portion 211 may protrude outward to form at least one thermal
insulation rib 2111, and
a lower end of the heating element 231 abuts against and is mounted on the at
least one thermal
insulation rib 2111, which can greatly reduce a direct contact area between
the heating element
231 and the base 21 to facilitate thermal insulation. A lower end surface of
the heating cover 22
may protrude downward to form at least one thermal insulation rib 2212, and an
upper end of the
heating element 231 abuts against and is mounted on the at least one thermal
insulation rib 2212,
which can greatly reduce a direct contact area between the heating element 231
and the heating
cover 22 to facilitate thermal insulation. In this embodiment, there are three
thermal insulation
ribs 2111 and three thermal insulation ribs 2212 respectively, which may be
disposed in a one-to-
one correspondence.
[0058] The shunt mesh 25 is disposed above the heating cover 22 and
includes a shunt region
S provided with a plurality of airflow holes 250. A diffusion cavity 2260 is
formed between the
heating cover 22 and the shunt mesh 25, after the hot air flowing out from the
convergence hole
2250 is diffused in the diffusion cavity 2260, the hot air is then
redistributed through the plurality
of airflow holes 250 on the shunt mesh 25, so that heating of the vaporization
medium is more
uniform. In this embodiment, the filter mesh 25 is in a shape of a flat plate
and may be made of a
metal material such as stainless steel. A top surface of the heating cover 22
concaves downward
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to form the diffusion cavity 2260, and a central axis of the diffusion cavity
2260 may overlap
with a central axis of the convergence hole 2250.
[0059] The shunt region S is disposed corresponding to the diffusion cavity
2260, and a
shape and an area of the shunt region S may be consistent or approximately
consistent with a
shape and an area of a cross section of the diffusion cavity 2260
respectively. The shunt region S
may include a center region Si located at a center of the shunt region S and a
peripheral region
S2 surrounding the center region Si. A distribution density of the plurality
of airflow holes 250
in the center region Si is less than a distribution density of the plurality
of airflow holes 250 in
the peripheral region S2, to form a mesh hole structure with a sparse center
and a dense
periphery. The hot air flowing out from the convergence hole 2250 and diffused
to the diffusion
cavity 2260 may cause pressure in the center is relatively great and pressure
at the periphery is
related small, and the mesh hole structure is set to have a sparse center and
a dense periphery, so
that a flow distribution of the hot air flowing out from the airflow holes 250
in the center region
Si and the peripheral region S2 is more uniform, and the heating of the
vaporization medium is
more uniform. In this embodiment, the plurality of airflow holes 250 in the
center region Si are
distributed at uniform intervals, and the plurality of airflow holes 250 in
the peripheral region S2
are distributed at uniform intervals. In other embodiments, the distribution
density of the
plurality of airflow holes 250 in the shunt region S may alternatively
gradually increase from the
center to the periphery.
[0060] In some embodiments, the heating assembly 2 may further include a
temperature
measuring element 233 configured to measure an air temperature in the heating
assembly 2. The
temperature measuring element 233 generally may be a temperature sensor such
as a thermal
resistor. The temperature measuring element 233 may be disposed on a lower
side of the heating
cover 22 and configured to measure the air temperature at an entrance of the
convergence hole
2250. A bottom of the heating cover 22 may form a wire groove 2240 for
mounting the
temperature measuring element 233, and the wire groove 2240 and the
convergence groove 2230
may be respectively disposed on two opposite sides of the convergence hole
2250. In some other
embodiments, the temperature measuring element 233 may be alternatively
disposed on an upper
side of the heating cover 22 and configured to measure the air temperature at
the entrance of the
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convergence hole 2250, and a top of the heating cover 22 may also form a wire
groove 2270 for
mounting the temperature measuring element 233.
[0061] The upper cap 27 is covered on the heating cover 22 and the shunt
mesh 25 and may
be made of a material with high temperature resistance and low thermal
conductivity such as
steatite porcelain. In some embodiments, the upper cap 27 may include a first
cover body 271
located at a lower portion and having a relatively large shape size and a
second cover body 272
located at an upper portion and having a relatively small shape size. A bottom
surface of the first
cover body 271 concaves upward to form an accommodating cavity 2710, and a top
surface of
the second cover body 272 concaves downward to form a vaporization cavity 2720
in
communication with the accommodating cavity 2710. The vaporization cavity 2720
may be
configured to place a vaporization medium, and a size of a cross section of
the vaporization
cavity 2720 may be less than a size of a cross section of the accommodating
cavity 2710. The
upper portion of the heating cover 22 is disposed in the accommodating cavity
2710, and the
heating cover 22 abuts against a cavity wall of the accommodating cavity 2710
through the
thermal insulation protrusion 2211, to prevent direct contact thermal
conduction between the
outer wall surface of the heating cover 22 and an inner wall surface of the
accommodating cavity
2710. The outer periphery of the shunt mesh 25 may protrude outward to form at
least one
limiting protrusion 251, and the shunt mesh 25 abuts against the inner wall
surface of the
accommodating cavity 2710 through the at least one limiting protrusion 251,
which can greatly
reduce a direct contact area between the shunt mesh 25 and the upper cap 27 to
facilitate thermal
insulation. In this embodiment, there are a plurality of limiting protrusions
251, which are
distributed at intervals around the shunt mesh 25. A seal pad 24 may be
further disposed between
the shunt mesh 25 and the upper cap 27 and/or between the shunt mesh 25 and
the heating cover
22. The seal pad 24 may be in a shape of a circular plate and may be made of
an elastic material
with high temperature resistance such as silica gel.
[0062] In some embodiments, the heating body 20 may further include a
replaceable filter
mesh 26 disposed above the shunt mesh 25. A vent gap 260 is formed between a
bottom surface
of the replaceable filter mesh 26 and a top surface of the shunt mesh 25, and
a plurality of first
filter holes 2610 for airflow to run through are distributed on the
replaceable filter mesh 26. The
replaceable filter mesh 26 may be made of a metal material with high
temperature resistance
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such as stainless steel and configured to place solid vaporization medium such
as tobacco leaves,
and the replaceable filter mesh 26 is taken out after the vaporization medium
is heated, which is
easy to discard or easy for a user to clean and reuse the replaceable filter
mesh, thereby reducing
pollution to the shunt mesh 25. The replaceable filter mesh 26 is detachably
disposed in the
vaporization cavity 2720, and an outer edge of the replaceable filter mesh 26
may concave
inward to form at least one groove 2611, so that an area of an entire cross
section of the
replaceable filter mesh 26 is less than an area of an entire cross section of
the vaporization cavity
2720. The at least one groove 2611 may facilitate the user to take out the
replaceable filter mesh
26 by using tools such as a nipper, and a contact area between the replaceable
filter mesh 26 and
the upper cap 27 may be reduced to facilitate thermal insulation. In this
embodiment, there are a
plurality of grooves 2611, which are distributed at intervals around the
replaceable filter mesh
26.
[0063] In this embodiment, the replaceable filter mesh 26 may be in a shape
of a flat plate,
and a shape and a size of the replaceable filter mesh may be consistent or
approximately
consistent with a shape and a size of the shunt region S of the shunt mesh 25
respectively. The
replaceable filter mesh 26 includes a first region Al located at a center of
the replaceable filter
mesh 26 and a second region A2 surrounding the first region Al. The first
region Al and the
second region A2 are disposed corresponding to the center region S1 and the
peripheral region
S2 respectively, and a distribution density of the plurality of first filter
holes 2610 in the first
region Al is less than a distribution density of the plurality of first filter
holes 2610 in the second
region A2, to form a mesh hole structure with a sparse center and a dense
periphery, so that a
flow distribution of the hot air is more uniform and the heating of the
vaporization medium is
more uniform. In this embodiment, the plurality of first filter holes 2610 in
the first region Al
are distributed at uniform intervals, and the plurality of first filter holes
2610 in the second
region A2 are distributed at uniform intervals. In another embodiment, the
distribution density of
the plurality of first filter holes 2610 on the replaceable filter mesh 26 may
alternatively
gradually increase from a center to a periphery of the replaceable filter mesh
26.
[0064] In some embodiments, the heating assembly 2 may further include a
seal ring 28
sleeved on the second cover body 272 and a locking member 29 configured to
lock the upper cap
27 and the base 21. The seal ring 28 may be in a shape of a circle and may be
made of an elastic
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material with high temperature resistance such as silica gel. The locking
member 29 may be
made of a metal material with high temperature resistance such as stainless
steel. The locking
member 29 is in a shape of a square ring provided with an opening on one side
and may include
a bottom wall 291 and two L-shaped clamp arms 292 respectively extending
upward from two
ends of the bottom wall 291. The locking member 29 surrounds the base 21 and
the first cover
body 271, to lock the upper cap 27 and the base 21.
[0065] FIG. 10 to FIG. 11 show a heating assembly 2 in a second embodiment
of the present
invention, and a main difference between the second embodiment and the first
embodiment lies
in that, in this embodiment, the temperature measuring element 233 is disposed
on an upper side
of the heating cover 22 and configured to measure an air temperature at the
entrance of the
convergence hole 2250. In addition, the replaceable filter mesh 26 in this
embodiment may
include a flat plate-shaped bottom wall 261 and a cylindrical protruding
portion 2612 extending
upward from the bottom wall 261. A plurality of first filter holes 2610 are
distributed on the
bottom wall 261, a distribution of the plurality of first filter holes 2610 on
the bottom wall 261 is
similar to the distribution of the flat plate-shaped replaceable filter mesh
26 in the first
embodiment, and details are not described herein again. An outer edge of the
bottom wall 261
concaves inward to form at least one groove 2611, which facilitates the user
to take out the
replaceable filter mesh 26 by using tools such as a nipper, and a contact area
between the
replaceable filter mesh 26 and the upper cap 27 may be reduced to facilitate
thermal insulation.
A bottom surface of the bottom wall 261 may further protrude downward to form
at least one
bump 2614, and the replaceable filter mesh 26 may abut against the shunt mesh
25 through the
bump 2614. In this embodiment, there are four bumps 2614, which are
respectively located at
four corners of the protruding portion 2612.
[0066] The protruding portion 2612 is in a shape of an inverted hollow
cylinder, and a side
wall and a top wall of the protruding portion are respectively provided with a
plurality of second
filter holes 2613 for airflow to run through. The hot air may flow into the
vaporization cavity
2720 through the plurality of second filter holes 2613, to increase a contact
area with the
vaporization medium, so that the heating and vaporization are more uniform.
7597022
Date Recue/Date Received 2022-06-21
[0067] FIG. 12 to FIG. 13 show a heating assembly 2 in a third embodiment
of the present
invention, and a main difference between the second embodiment and the first
embodiment lies
in that, in this embodiment, the temperature measuring element 233 is disposed
on an upper side
of the heating cover 22 and configured to measure an air temperature at the
entrance of the
convergence hole 2250. In addition, the replaceable filter mesh 26 in this
embodiment is in a
shape of a bowl and may include a flat plate-shaped bottom wall 261, a
cylindrical side wall 262
extending upward from an outer periphery of the bottom wall 261, and a
circular flange 263
extending outward from an upper periphery of the cylindrical side wall 262. A
plurality of first
filter holes 2610 are distributed on the bottom wall 261, a distribution of
the plurality of first
filter holes 2610 on the bottom wall 261 is similar to the distribution of the
flat plate-shaped
replaceable filter mesh 26 in the first embodiment, and details are not
described herein again.
[0068] The flange 263 may abut against the upper end surface of the heating
cover 22, to
facilitate mounting and positioning of the replaceable filter mesh 26 in the
vaporization cavity
2720.
[0069] The cylindrical side wall 262 may be approximately in a shape of a
funnel and a size
of a cross section thereof decreases from top to bottom. A plurality of third
filter holes 2620 for
airflow to run through are distributed on the cylindrical side wall 262, and
an airflow gap 2621 is
formed between the cylindrical side wall 262 and the inner wall surface of the
vaporization
cavity 2720, so that the hot air may flow into the vaporization cavity 2720
through the airflow
gap 2621 and the third filter holes 2620 sequentially, to make the heating and
vaporization more
uniform. In addition, the cylindrical side wall 262 is not in contact with the
upper cap 27, which
facilitates thermal insulation between the replaceable filter mesh 26 and the
upper cap 27.
[0070] FIG. 14 shows a heating assembly 2 in a fourth embodiment of the
present invention,
and a main difference between the fourth embodiment and the first embodiment
lies in that, in
this embodiment, the heating assembly 2 further includes a paste guide body
26a disposed above
the shunt mesh 25 and configured to place a paste vaporization medium, so that
the replaceable
filter mesh 26 is not required. The paste guide body 26a may use an absorbing
structure with a
capillary adsorption function, so that after the paste vaporization medium is
heated and melted,
the melted liquid is absorbed and prevented from flowing to the shunt mesh 25.
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[0071] It may be understood that, the foregoing technical features may be
combined and used
freely without limitation.
[0072] While the invention has been illustrated and described in detail in
the drawings and
foregoing description, such illustration and description are to be considered
illustrative or
exemplary and not restrictive. It will be understood that changes and
modifications may be made
by those of ordinary skill within the scope of the following claims. In
particular, the present
invention covers further embodiments with any combination of features from
different
embodiments described above and below. Additionally, statements made herein
characterizing
the invention refer to an embodiment of the invention and not necessarily all
embodiments.
[0073] The terms used in the claims should be construed to have the
broadest reasonable
interpretation consistent with the foregoing description. For example, the use
of the article "a"
or "the" in introducing an element should not be interpreted as being
exclusive of a plurality of
elements. Likewise, the recitation of "or" should be interpreted as being
inclusive, such that the
recitation of "A or B" is not exclusive of "A and B," unless it is clear from
the context or the
foregoing description that only one of A and B is intended. Further, the
recitation of "at least
one of A, B and C" should be interpreted as one or more of a group of elements
consisting of A,
B and C, and should not be interpreted as requiring at least one of each of
the listed elements A,
B and C, regardless of whether A, B and C are related as categories or
otherwise. Moreover, the
recitation of "A, B and/or C" or "at least one of A, B and C" should be
interpreted as including
any singular entity from the listed elements, e.g., A, any subset from the
listed elements, e.g., A
and B, or the entire list of elements A, B and C.
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